Observe’s Response to CVE-2024-4323

Fluent-Bit, an open-source log collection tool used by Observe for host monitoring and Kubernetes integrations, is affected by a vulnerability identified as CVE-2024-4323, which involves memory corruption via a built-in HTTP server's /api/v1/trace endpoint. Although the server is off by default in Observe's Host Monitoring, making it non-exploitable, it is on in Kubernetes setups for internal diagnostics, requiring internal cluster access for exploitation. Observe recommends upgrading to Fluent-Bit version 3.0.4, which addresses the vulnerability. Updated installer scripts, Kustomize manifests, and Helm charts have been provided for secure installations as of May 21, 2024. Detection of vulnerable binaries and usage of port 2020 can be monitored through Observe's Host Monitoring app and related datasets, with additional support available through the Observe Slack Community.

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